3 papers
math.MG2026
On the Banach--Mazur radius of
Omer Friedland, Assaf Naor, Pierre Youssef
We prove that any -dimensional normed space is at Banach--Mazur distance from .
math.CO2026
A Log-Free Lower Bound for the Number of Facets of -Polytopes
Omer Friedland
Let denote the largest number of facets of a full-dimensional -polytope in . We prove that there are absolute constants and such that $$ g(n)\ge (cn)^…
math.CA2026
Geometry-Driven Conditioning of Multivariate Vandermonde Matrices in High-Degree Regimes
Omer Friedland, Yosef Yomdin
We study multivariate monomial Vandermonde matrices with arbitrary distinct nodes in the high-degree regime . Introducing a pr…